Innovation provider

CEBET

Contact

ul. Marywilska 42B
03-042 Warszawa
Poland
tel. +48 22 811 19 73
fax +48 22 811 24 79
e-mail: info@cebet.waw.pl
www.cebet.waw.pl

Description

Changes in the solid fuel power industry, consisting in the introduction of different methods of desulphurisation of flue gases and acquisition of energy from renewable sources, result in the production of fly ashes of a new generation. These ashes have different physico-chemical properties than the well known and widely applied in construction material industry fly ashes, obtained using traditional methods of coal burning in dust boilers. Therefore, the problem of how to use these ashes appears. One of the few technologies where fly ashes can be used effectively is AAC. The AAC is a perfect, energysaving and friendly to the environment building material which can be used in all types of buildings. In AAC the fly ash can make up even to 75% of all compounds.
For this reason, in Poland, research work focused on the application of new generation fly ashes was initiated. No-waste technology for production of AAC, using fly ashes from coal and biomass co-combustion was developed. Research activity is carried out to work out a technology which uses ashes arising from different methods of desulphurization of exhaust gases. Introduction of different methods of desulphurisation and gaining energy from renewable sources result in the reduction of concentrations of CO2, SO2 and NOX emitted to
the atmosphere. Production of AAC is no-waste production, generating no compounds harmful to the environment or living organisms.

Advantages

Utilisation of new generation fly ashes for the production of AAC allows to reduce ash heaps (for each m3 of the autoclaved aerated concrete of the density - 600 kg/m3 about 450 kg of fl y ashes will be used; at the plant output of about 300.000 m3 AAC/year the quantity of the stored ashes will go down by about 135.000 t/year). Production of AAC using new generation fl y ashes in comparison to the production of AAC from sand can save even 40% of energy (3 mln kWh/y) and 30% of the binding material (12.000 t/y).Production of AAC using new generation fl y ashes in comparison to the production of AAC from sand can save even 40% of energy (3 mln kWh/y) and 30% of the binding material (12.000 t/y). The quantity of the stored fl y ashes will go down by 135.000 t/y.

Innovative aspects (ecologic, social and economic)

Utilisation of plant output.


Application examples

Interior and exterior finishing of buildings. Over the 5 years the company has operated in the field of natural materials more than hundred objects have been done and trainings carried out.

Cost

Current stage of development

Already on the market

Intellectual Property Rights

Patent granted

Country of origin

Poland

Country of application

Year

2008

National Contact Point

dr Włodzimierz A. Sokół
National Contact Point for Eco-efficient Technologies and Management Systems
Central Mining Institute (GIG)

Plac Gwarkow 1
40-166 Katowice
Poland

Tel: +48 32 259 22 11
Fax: +48 259 22 11

w.sokol@gig.eu
www.actclean.gig.eu